Why We Choose HJS Catalytic Converters:
HJS German imported catalytic converters are made from some of the highest grade material you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.
Designed to be the perfect complement to either the factory exhaust system or Fabspeed’s Maxflo or Supercup Exhaust systems, these high-flow headers include HJS catalytic converters, making them the best upgrade for street driving and emissions compliance.
Improve the exhaust flow for your Porsche 981’s incredibly tuned engine and see the horsepower skyrocket. Fabspeed’s Sport Headers are designed specifically for the Porsche 981 Boxster and Cayman, complete with top-of-the-line genuine high-flow HJS catalytic converters. These high performance headers allow the perfect flow of air to the machine’s exhaust system while improving the exhaust note and throttle response significantly.
Replacing OEM headers on your Porsche Boxster or Cayman will reduce weight by 6 pounds and increase power by 13 horsepower at the wheel. The already impressive engineering of Porsche gains a significant boost with these unbeatable performance headers and cats.
INSTALLATION NOTE: To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs.
DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
Couldn't be happier with my purchase! My car has never sounded better.
Customer service was fantastic, had answers for all of my questions. The Sport Headers arrived packed in form-fitting foam so there was no chance of shipping damage. The quality was outstanding, the welds clean, and quality control stickers with signatures were attached. Since installing these headers I have experienced a better jump off the line and more pulling power throughout the rev range. Very satisfied customer, cannot wait to complement the headers with the Maxflo exhaust.
Power and throttle response changes and car feels different in a positive way.
The Setup I have with the Plenum + Throttle Body + COBB Tune with the all new PDK tune is brilliant, now the car feels just right for daily use.
The headers are consistent with everything I have heard from you, your website, and comments from other club and forum members.
Bottom line is I am well pleased with the results. Both my Porsche mechanic/machinist friend and I were impressed with the build quality and the performance results which eliminated the classic flat spot in the horsepower/torque curve. The extra pulling power from the added horsepower was just icing on the cake.
Thank you again for your time and for the information you provided. On another note, I understand that the owner of Fabspeed is a good friend of another friend of mine, Dudley Wass. Dudley was my driving instructor for a number of PCA events. We spoke recently about the 911s and Caymans we have owned over the years..and I received yet another endorsement for Fabspeed products in the process.